I've worked on a lot of fun movies but -- favorite job was having a boss who gave the order to take out bin Laden. And who's cool with all of us getting gay marriage. So thank you invisible man in the chair for that's. It. My friends and access to affordable health insurance and doubling funding for the pell grants. Now I started volunteering for Barack Obama back in 2007. But nothing really compares to what I saw behind the scenes at the White House when I had the honor to serve for two years as president Obama's liaison to young Americans. I saw how hard he flights for us and one of the most special days was the Saturday in 2012. The senate had repeal Don't Ask Don't Tell so that anyone can serve the country they love regardless of -- -- love. But the same day the DREAM Act was blocked. That bill would give immigrant children -- never pledged allegiance to any -- but -- the chance to earn their citizenship. -- importance. And I was into a small office on the second floor the west wing with about eight other staffers and we had worked our hearts out cared very deeply about what this would mean for other young people. There wasn't a dry eye in the room tears of joy for the history that was made but also tears of sadness because some American dreams would still be deferred. And about five minutes later President Obama walked in sleeves rolled up. And he said to us this is not over. We're gonna keep -- I'm gonna keep fighting I need young people to keep fighting. That's why we're here. Months later. President Obama fought to keep taxes from going up on middle class families. -- our Republican friends said sure you can do that. But one of the things they're willing to trade is a little film called the college tax credit. Which today is saving students up to 101000 dollars over the course of four years of school. President Obama paid off his own student loans not too long ago. But he remembers what that's like. They said that making it easier to go to college and get technical training is exactly how we grow our economy. And create jobs -- compete the entire world. So he stood firm. And that tuition tax credit is still there. Okay. But here's the thing. There's a thing if we don't register. If we don't vote it won't be. I volunteered in Iowa in 2007. Because like you. I had friends serving in Iraq. I had friends who were looking for jobs others who couldn't go to the doctor because it couldn't afford it. I felt that had to change so I knocked on some doors a registered voters and am -- hearing again. Because my friend Matt got a job at a Detroit car company that still exists and Lauren can get the prescriptions that she needs. I'm volunteering because -- Zion just back from Iraq. Chris is finishing college on the GI bill and three weeks ago my buddy Kevin's boyfriend was able to watch and graduated from Marine Corps training. That's change. So before. -- -- -- And as I wonder which Twitter hash tags you'll start using when I'm done talking has -- sixty face. I ask all of you young people to join me you even if the pulp pants on. Go to commit dumb Barack Obama dot com and register right there any alliance the all these other you guys can do a true okay. Let's keep fighting for a president who has never stop fighting for us. Go online find your local campaign office for all your friends call some strangers volunteer. That's how we're gonna win this thing. Now. I really really enjoyed listening to run speech but he's -- mayor announced so he can't use four letter words. But I'm no mayor. Still have got one for you. Votes thank you very much.

This transcript has been automatically generated and may not be 100% accurate.

{"id":17154823,"title":"Kal Penn Thanks 'Invisible Man in the Chair'","duration":"3:00","description":"The actor talks about the president's achievements and work ethic.","section":"Politics","mediaType":"Default"}